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Is it possible to turn off Firefox's data sharing functions?

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I am concerned about Firefox's data sharing functions.

Can anyone inform me on how to turn off these functions, if it is possible to do so?

Alternatively, if these functions do not breach security or privacy for a user, please let me know; in such a case it would not be necessary to de-activate.

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In the Privacy & Security section of the Firefox settings, there is a Firefox Data Collection and Use section. This will allow you to limit what data is shared with Mozilla. Each option there has a Learn More button so you can see what the data is used for.

Mozilla fights for user privacy, so they keep data collection to a minimum. It's generally just statistical data to improve Firefox and pinpoint issues that users discover.

NOTE: If you use search, a Firefox Account, Firefox Sync, location services, Firefox Screenshots, website notifications or add-ons there is some data that Mozilla will share for functionality.